212033430 has 128 divisors (see below), whose sum is σ = 661478400. Its totient is φ = 47319552.

The previous prime is 212033383. The next prime is 212033461. The reversal of 212033430 is 34330212.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 79966 + ... + 82574.

It is an arithmetic number, because the mean of its divisors is an integer number (5167800).

Almost surely, 2^212033430 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212033430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (330739200).

212033430 is an abundant number, since it is smaller than the sum of its proper divisors (449444970).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212033430 is a wasteful number, since it uses less digits than its factorization.

212033430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2675 (or 2669 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 212033430 is about 14561.3677242215. The cubic root of 212033430 is about 596.3045359713.

Adding to 212033430 its reverse (34330212), we get a palindrome (246363642).

The spelling of 212033430 in words is "two hundred twelve million, thirty-three thousand, four hundred thirty".